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Finding the Fourth Proportional to 402,002.53, 554,764.61 and 220,726.20

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Solution

The fourth proportional to 402,002.53, 554,764.61 and 220,726.20 is: 304,602.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,002.53 : 554,764.61 = 220,726.20 : x
  2. Step 2: Convert to fraction form
    402,002.53/554,764.61 = 220,726.20/x
  3. Step 3: Cross multiply
    402,002.53x = 554,764.61 × 220,726.20
  4. Step 4: Simplify right side
    402,002.53x = 122,451,084,259.78
  5. Step 5: Solve for x
    x = 122,451,084,259.78/402,002.53
  6. Step 6: Final answer
    x = 304,602.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.